Any suggestions I am using my desktop pc to load a tune to my zdyne.I am receiving check sum errors when I try to upload. I am using the supplied cable from zdyne. could it have to do with the way i configure port 2. I cant use port 1 as my mouse is there. I purchaced a parrallel printer cable to serial cable. could this be the trouble.any help is appreciated ?

 

is the ecu plugged into your car? it needs power to the Zdyne for you to upload tunes...

 

the ecu is plugged in. Can anyone tell me how there com ports are configered maybe that will help ?

 

It doesn't use com ports. ZDyne is a serial connection from the printer port...